French
Élan
/ay-LAHN/
A spirited, enthusiastic manner or style; a burst of energy, enthusiasm, or vigor.
Lit. sprout, shoot, dash (in the sense of a quick movement or surge)
It's often used to describe a person's approach to life, work, or an artistic endeavor, implying a lively, confident, and energetic quality. It can also refer to a sudden surge of enthusiasm or drive.